woocommerce/assets/js/frontend/add-to-cart-variation.js

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jQuery(document).ready(function($) {
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/**
* Variations form handling
*/
$('form.variations_form')
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// On clicking the reset variation button
.on( 'click', '.reset_variations', function( event ) {
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$(this).closest('form.variations_form').find('.variations select').val('').change();
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var $sku = $(this).closest('.product').find('.sku');
if ( $sku.attr( 'data-o_sku' ) )
$sku.text( $sku.attr( 'data-o_sku' ) );
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return false;
} )
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// Upon changing an option
.on( 'change', '.variations select', function( event ) {
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$variation_form = $(this).closest('form.variations_form');
$variation_form.find('input[name=variation_id]').val('').change();
$variation_form
.trigger( 'woocommerce_variation_select_change' )
.trigger( 'check_variations', [ '', false ] );
$(this).blur();
if( $().uniform && $.isFunction( $.uniform.update ) ) {
$.uniform.update();
}
} )
// Upon gaining focus
.on( 'focusin', '.variations select', function( event ) {
$variation_form = $(this).closest('form.variations_form');
$variation_form
.trigger( 'woocommerce_variation_select_focusin' )
.trigger( 'check_variations', [ $(this).attr('name'), true ] );
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} )
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// Check variations
.on( 'check_variations', function( event, exclude, focus ) {
var all_set = true;
var any_set = false;
var showing_variation = false;
var current_settings = {};
var $variation_form = $(this);
var $reset_variations = $variation_form.find('.reset_variations');
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$variation_form.find('.variations select').each( function() {
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if ( $(this).val().length == 0 ) {
all_set = false;
} else {
any_set = true;
}
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if ( exclude && $(this).attr('name') == exclude ) {
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all_set = false;
current_settings[$(this).attr('name')] = '';
} else {
// Encode entities
value = $(this).val()
.replace(/&/g, '&')
.replace(/"/g, '"')
.replace(/'/g, ''')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
// Add to settings array
current_settings[ $(this).attr('name') ] = value;
}
});
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var product_id = parseInt( $variation_form.attr( 'data-product_id' ) );
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var all_variations = window[ "product_variations" ][ product_id ];
// Fallback
if ( ! all_variations )
all_variations = window[ "product_variations" ];
var matching_variations = find_matching_variations( all_variations, current_settings );
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if ( all_set ) {
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var variation = matching_variations.pop();
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if ( variation ) {
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// Found - set ID
$variation_form
.find('input[name=variation_id]')
.val( variation.variation_id )
.change();
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$variation_form.trigger( 'found_variation', [ variation ] );
} else {
// Nothing found - reset fields
$variation_form.find('.variations select').val('');
if ( ! focus )
$variation_form.trigger( 'reset_image' );
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}
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} else {
$variation_form.trigger( 'update_variation_values', [ matching_variations ] );
if ( ! focus )
$variation_form.trigger( 'reset_image' );
if ( ! exclude ) {
$variation_form.find('.single_variation_wrap').slideUp('200');
}
}
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if ( any_set ) {
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if ( $reset_variations.css('visibility') == 'hidden' )
$reset_variations.css('visibility','visible').hide().fadeIn();
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} else {
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$reset_variations.css('visibility','hidden');
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}
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} )
// Reset product image
.on( 'reset_image', function( event ) {
var $product = $(this).closest( '.product' );
var $product_img = $product.find( 'div.images img:eq(0)' );
var $product_link = $product.find( 'div.images a.zoom:eq(0)' );
var o_src = $product_img.attr('data-o_src');
var o_title = $product_img.attr('data-o_title');
var o_href = $product_link.attr('data-o_href');
if ( o_src && o_href && o_title ) {
$product_img
.attr( 'src', o_src )
.attr( 'alt', o_title )
.attr( 'title', o_title );
$product_link
.attr( 'href', o_href )
.attr( 'title', o_title );
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}
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} )
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// Disable option fields that are unavaiable for current set of attributes
.on( 'update_variation_values', function( event, variations ) {
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$variation_form = $(this).closest('form.variations_form');
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// Loop through selects and disable/enable options based on selections
$variation_form.find('.variations select').each(function( index, el ){
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current_attr_select = $(el);
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// Disable all
current_attr_select.find('option:gt(0)').attr('disabled', 'disabled');
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// Get name
var current_attr_name = current_attr_select.attr('name');
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// Loop through variations
for ( num in variations ) {
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var attributes = variations[ num ].attributes;
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for ( attr_name in attributes ) {
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var attr_val = attributes[ attr_name ];
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if ( attr_name == current_attr_name ) {
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if ( attr_val ) {
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// Decode entities
attr_val = $("<div/>").html( attr_val ).text();
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// Add slashes
attr_val = attr_val.replace(/'/g, "\\'");
attr_val = attr_val.replace(/"/g, "\\\"");
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// Compare the meercat
current_attr_select.find('option[value="' + attr_val + '"]').removeAttr('disabled');
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} else {
current_attr_select.find('option').removeAttr('disabled');
}
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}
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}
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}
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});
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// Custom event for when variations have been updated
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$variation_form.trigger('woocommerce_update_variation_values');
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} )
// Show single variation details (price, stock, image)
.on( 'found_variation', function( event, variation ) {
var $variation_form = $(this);
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var $product = $(this).closest( '.product' );
var $product_img = $product.find( 'div.images img:eq(0)' );
var $product_link = $product.find( 'div.images a.zoom:eq(0)' );
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var o_src = $product_img.attr('data-o_src');
var o_title = $product_img.attr('data-o_title');
var o_href = $product_link.attr('data-o_href');
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var variation_image = variation.image_src;
var variation_link = variation.image_link;
var variation_title = variation.image_title;
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$variation_form.find('.variations_button').show();
$variation_form.find('.single_variation').html( variation.price_html + variation.availability_html );
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if ( ! o_src ) {
o_src = ( ! $product_img.attr('src') ) ? '' : $product_img.attr('src');
$product_img.attr('data-o_src', o_src );
}
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if ( ! o_href ) {
o_href = ( ! $product_link.attr('href') ) ? '' : $product_link.attr('href');
$product_link.attr('data-o_href', o_href );
}
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if ( ! o_title ) {
o_title = ( ! $product_img.attr('title') ) ? '' : $product_img.attr('title');
$product_img.attr('data-o_title', o_title );
}
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if ( variation_image && variation_image.length > 1 ) {
$product_img
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.attr( 'src', variation_image )
.attr( 'alt', variation_title )
.attr( 'title', variation_title );
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$product_link
.attr( 'href', variation_link )
.attr( 'title', variation_title );
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} else {
$product_img
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.attr( 'src', o_src )
.attr( 'alt', o_title )
.attr( 'title', o_title );
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$product_link
.attr( 'href', o_href )
.attr( 'title', o_title );
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}
var $single_variation_wrap = $variation_form.find('.single_variation_wrap');
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var $sku = $product.find('.product_meta').find('.sku');
if ( ! $sku.attr( 'data-o_sku' ) )
$sku.attr( 'data-o_sku', $sku.text() );
if ( variation.sku ) {
$sku.text( variation.sku );
} else {
$sku.text( $sku.attr( 'data-o_sku' ) );
}
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$single_variation_wrap.find('.quantity').show();
if ( ! variation.is_in_stock && ! variation.backorders_allowed ) {
$variation_form.find('.variations_button').hide();
}
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if ( variation.min_qty )
$single_variation_wrap.find('input[name=quantity]').attr( 'data-min', variation.min_qty ).val( variation.min_qty );
else
$single_variation_wrap.find('input[name=quantity]').removeAttr('data-min');
if ( variation.max_qty )
$single_variation_wrap.find('input[name=quantity]').attr('data-max', variation.max_qty);
else
$single_variation_wrap.find('input[name=quantity]').removeAttr('data-max');
if ( variation.is_sold_individually == 'yes' ) {
$single_variation_wrap.find('input[name=quantity]').val('1');
$single_variation_wrap.find('.quantity').hide();
}
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$single_variation_wrap.slideDown('200').trigger( 'show_variation', [ variation ] );
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} );
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/**
* Initial states and loading
*/
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$('form.variations_form .variations select').change();
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/**
* Helper functions for variations
*/
// Search for matching variations for given set of attributes
function find_matching_variations( product_variations, settings ) {
var matching = [];
for (var i = 0; i < product_variations.length; i++) {
var variation = product_variations[i];
var variation_id = variation.variation_id;
if ( variations_match( variation.attributes, settings ) ) {
matching.push(variation);
}
}
return matching;
}
// Check if two arrays of attributes match
function variations_match( attrs1, attrs2 ) {
var match = true;
for ( attr_name in attrs1 ) {
var val1 = attrs1[ attr_name ];
var val2 = attrs2[ attr_name ];
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if ( val1 !== undefined && val2 !== undefined && val1.length != 0 && val2.length != 0 && val1 != val2 ) {
match = false;
}
}
return match;
}
});